The line that Ves drew from the placement of powerful exotics in the mining site was not that precise.
The deposits weren't aligned in a perfect line. Ves figured that even if a mysterious object had crashed through the surface of Iron Crusher and penetrated deeper into the crust, millions of years must have passed since this probable event.
That was more than enough time for tectonic activity and other events to disturb the placement of the soil.
Fortunately, Iron Crusher happened to be a relatively stable moon that was spared from too many disturbances. The deposits of high-value exotics hadn't shifted all over the place, causing this obvious clue to disappear entirely due to the passage of time.
From the moment Ves had discovered the remarkable pattern, he smelled he had stumbled upon a remarkable occurrence.